Home / 161,531.60-222,913.58-89,910.09

Finding the Fourth Proportional to 161,531.60, 222,913.58 and 89,910.09

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Solution

The fourth proportional to 161,531.60, 222,913.58 and 89,910.09 is: 124,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,531.60 : 222,913.58 = 89,910.09 : x
  2. Step 2: Convert to fraction form
    161,531.60/222,913.58 = 89,910.09/x
  3. Step 3: Cross multiply
    161,531.60x = 222,913.58 × 89,910.09
  4. Step 4: Simplify right side
    161,531.60x = 20,042,179,590.47
  5. Step 5: Solve for x
    x = 20,042,179,590.47/161,531.60
  6. Step 6: Final answer
    x = 124,075.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.